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'''Carnegie Stage 14'''
'''Carnegie Stage 14'''
Facts: Week 5, 31 - 35 days, 5 - 7 mm
* Facts: Week 5, 31 - 35 days, 5 - 7 mm
 
* View: Lateral view. Amniotic membrane removed.
View: Lateral view. Amniotic membrane removed.
* Features: midbrain, nasal placode, lens pit, 1,2,3 pharyngeal arches, fourth ventricle of brain, 1st pharyngeal groove, heart prominence, cervical sinus, upper limb bud, mesonephric ridge, lower limb bud, umbilical cord
 
* Identify: midbrain region, nasal placode, lens pit, 1st, 2nd and 3rd pharyngeal arches, 1st pharyngeal groove, maxillary and mandibular components of 1st pharyngeal arch, fourth ventricle of brain, heart prominence, cervical sinus, upper limb bud, mesonephric ridge, lower limb bud, umbilical cord
Features: midbrain, nasal placode, lens pit, 1,2,3 pharyngeal arches, fourth ventricle of brain, 1st pharyngeal groove, heart prominence, cervical sinus, upper limb bud, mesonephric ridge, lower limb bud, umbilical cord
 
Identify: midbrain region, nasal placode, lens pit, 1st, 2nd and 3rd pharyngeal arches, 1st pharyngeal groove, maxillary and mandibular components of 1st pharyngeal arch, fourth ventricle of brain, heart prominence, cervical sinus, upper limb bud, mesonephric ridge, lower limb bud, umbilical cord




'''Carnegie Stage 23''' (day 56)
'''Carnegie Stage 23''' (day 56)
Facts: Week 8, 56 - 60 days, 27 - 31 mm
* Facts: Week 8, 56 - 60 days, 27 - 31 mm
 
* View: Lateral view. Amniotic membrane removed.
View: Lateral view. Amniotic membrane removed.
* Features: scalp vascular plexus, eylid, eye, nose, auricle of external ear, mouth, sholder, arm, elbow, wrist, toes separated, sole of foot, umbilical cord
 
* Original Image Source: http://embryology.med.unsw.edu.au/wwwhuman/Stages/Images/stage14compare23.jpg
Features: scalp vascular plexus, eylid, eye, nose, auricle of external ear, mouth, sholder, arm, elbow, wrist, toes separated, sole of foot, umbilical cord


Original Image Source: http://embryology.med.unsw.edu.au/wwwhuman/Stages/Images/stage14compare23.jpg
(More? [[Embryonic_Development]])




Revision as of 08:05, 1 November 2009

Human Embryo comparison of embryo sizes between Stage 14 and Stage 23 (More? Embryonic_Development)

Carnegie Stage 14

  • Facts: Week 5, 31 - 35 days, 5 - 7 mm
  • View: Lateral view. Amniotic membrane removed.
  • Features: midbrain, nasal placode, lens pit, 1,2,3 pharyngeal arches, fourth ventricle of brain, 1st pharyngeal groove, heart prominence, cervical sinus, upper limb bud, mesonephric ridge, lower limb bud, umbilical cord
  • Identify: midbrain region, nasal placode, lens pit, 1st, 2nd and 3rd pharyngeal arches, 1st pharyngeal groove, maxillary and mandibular components of 1st pharyngeal arch, fourth ventricle of brain, heart prominence, cervical sinus, upper limb bud, mesonephric ridge, lower limb bud, umbilical cord


Carnegie Stage 23 (day 56)

(More? Embryonic_Development)


Image Source: UNSW Embryology Carnegie Stages

© Dr Mark Hill, Image cannot be reproduced without permission.

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current20:56, 13 May 2009Thumbnail for version as of 20:56, 13 May 2009593 × 601 (32 KB)MarkHill (talk | contribs)Human Embryo comparison of embryo sizes between Stage 14 and Stage 23 http://embryology.med.unsw.edu.au/wwwhuman/Stages/Images/stage14compare23.jpg Image source: UNSW Embryology © Dr Mark Hill, Image cannot be reproduced without permission.

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